我是libgdx的新手。刚尝试运行libgdx示例我发现奇怪的错误：
[2013-03-22 12:08:35 - ObjLoaderUsingLibGdx] Dx 1 error; aborting
[2013-03-22 12:08:35 - ObjLoaderUsingLibGdx] Conversion to Dalvik format failed with error 1
[2013-03-22 12:10:59 - ObjLoaderUsingLibGdx] Dx
trouble processing "java/io/BufferedInputStream.class":
Ill-advised or mistaken usage of a core class (java.* or javax.*)
when not building a core library.
This is often due to inadvertently including a core library file
in your application's project, when using an IDE (such as
Eclipse). If you are sure you're not intentionally defining a
core class, then this is the most likely explanation of what's
going on.
However, you might actually be trying to define a class in a core
namespace, the source of which you may have taken, for example,
from a non-Android virtual machine project. This will most
assuredly not work. At a minimum, it jeopardizes the
compatibility of your app with future versions of the platform.
It is also often of questionable legality.
If you really intend to build a core library -- which is only
appropriate as part of creating a full virtual machine
distribution, as opposed to compiling an application -- then use
the "--core-library" option to suppress this error message.
If you go ahead and use "--core-library" but are in fact
building an application, then be forewarned that your application
will still fail to build or run, at some point. Please be
prepared for angry customers who find, for example, that your
application ceases to function once they upgrade their operating
system. You will be to blame for this problem.
If you are legitimately using some code that happens to be in a
core package, then the easiest safe alternative you have is to
repackage that code. That is, move the classes in question into
your own package namespace. This means that they will never be in
conflict with core system classes. JarJar is a tool that may help
you in this endeavor. If you find that you cannot do this, then
that is an indication that the path you are on will ultimately
lead to pain, suffering, grief, and lamentation.
我不知道我跟着this tutorial开始的问题是什么。有人可以指出这个错误是什么。什么可能是这个错误的来源我无法理解遵循所有的步骤导入所有的lib并确实构建路径
答案 0 :(得分：0)
http://code.google.com/p/libgdx/wiki/ProjectSetupNew。设置项目的链接。
http://www.youtube.com/watch?feature=player_embedded&v=mmH05k6HFsI。指向youtube的链接，其中包含有关如何设置ligdx的教程。
https://groups.google.com/forum/?fromgroups=#!topic/android-platform/abxNKTFkuj8
"Conversion to Dalvik format failed with error 1" on external JAR
检查我的buildpath上是否有两个包含相同包和类的JAR文件。取下一个包。
尝试清理并构建项目。
答案 1 :(得分：0)
在我的案例中，Eclipse在核心项目src中复制了gdx-backend-gwt.jar，当我删除它时，问题就消失了。